Quarterly report pursuant to Section 13 or 15(d)

Note 11 - Goodwill and Intangibles - Finite Lived Intangible Assets (Details)

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Note 11 - Goodwill and Intangibles - Finite Lived Intangible Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Sep. 30, 2024
Accumulated amortization $ 12,430 $ 12,173
Net carrying amount 6,327 5,830
Gross carrying amount $ 6,103 $ 6,343
Customer Relationships [Member]    
Gross carrying amount (Year) 15 years 15 years
Accumulated amortization $ 4,778 $ 4,856
Net carrying amount 1,884 1,815
Gross carrying amount $ 2,894 $ 3,041
Finite-Lived Intangible Asset, Useful Life 15 years 15 years
Certification Marks [Member]    
Gross carrying amount (Year) 8 years 8 years
Accumulated amortization $ 1,068 $ 1,068
Net carrying amount 918 884
Gross carrying amount $ 150 $ 184
Finite-Lived Intangible Asset, Useful Life 8 years 8 years
Trademarks [Member]    
Accumulated amortization $ 1,081 $ 1,120
Net carrying amount 610 588
Gross carrying amount $ 471 $ 532
Trademarks [Member] | Minimum [Member]    
Gross carrying amount (Year) 8 years 8 years
Finite-Lived Intangible Asset, Useful Life 8 years 8 years
Trademarks [Member] | Maximum [Member]    
Gross carrying amount (Year) 10 years 10 years
Finite-Lived Intangible Asset, Useful Life 10 years 10 years
Patents [Member]    
Gross carrying amount (Year) 20 years 20 years
Accumulated amortization $ 1,330 $ 1,302
Net carrying amount 232 219
Gross carrying amount $ 1,098 $ 1,083
Finite-Lived Intangible Asset, Useful Life 20 years 20 years
Developed Technology Rights [Member]    
Gross carrying amount (Year) 10 years 10 years
Accumulated amortization $ 321 $ 346
Net carrying amount 77 75
Gross carrying amount $ 244 $ 271
Finite-Lived Intangible Asset, Useful Life 10 years 10 years
Other Intangible Assets [Member]    
Gross carrying amount (Year) 5 years 5 years
Accumulated amortization $ 6 $ 6
Net carrying amount 6 6
Gross carrying amount $ 0 $ 0
Finite-Lived Intangible Asset, Useful Life 5 years 5 years
Computer Software, Intangible Asset [Member]    
Accumulated amortization $ 3,846 $ 3,475
Net carrying amount 2,600 2,243
Gross carrying amount $ 1,246 $ 1,232
Computer Software, Intangible Asset [Member] | Minimum [Member]    
Gross carrying amount (Year) 1 year 1 year
Finite-Lived Intangible Asset, Useful Life 1 year 1 year
Computer Software, Intangible Asset [Member] | Maximum [Member]    
Gross carrying amount (Year) 3 years 3 years
Finite-Lived Intangible Asset, Useful Life 3 years 3 years